Techno-economic Analysis of Metal–Organic Frameworks for Hydrogen and Natural Gas Storage

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• 作者：Daniel DeSantisJarad A. Mason ; Brian D. James ; Cassidy Houchins ; Jeffrey R. Long ; Mike Veenstra
• 刊名：Energy & Fuels
• 出版年：2017
• 出版时间：February 16, 2017
• 年：2017
• 卷：31
• 期：2
• 页码：2024-2032
• 全文大小：498K
• ISSN：1520-5029

文摘

A techno-economic analysis was conducted for metal–organic framework (MOF) adsorbents, which are promising candidates for light-duty vehicle on-board natural gas and hydrogen storage. The goal of this analysis was to understand cost drivers for large-scale (2.5 Mkg/year) MOF synthesis and to identify potential pathways to achieving a production cost of less than $10/(kg of MOF). Four MOFs were analyzed with four different metal centers and three different linkers: Ni₂(dobdc) (dobdc^4– = 2,5-dioxido-1,4-benzenedicarboxylate; Ni-MOF-74), Mg₂(dobdc) (dobdc^4– = 2,5-dioxido-1,4-benzenedicarboxylate; Mg-MOF-74), Zn₄O(bdc)₃ (bdc^2– = 1,4-benzenedicarboxylate; MOF-5), and Cu₃(btc)₂ (btc^3– = 1,3,5-benzenetricarboxylate; HKUST-1). Baseline costs are projected to range from $35/kg to $71/kg predicated on organic solvent (solvothermal) syntheses using an engineering scale-up of laboratory-demonstrated synthesis procedures and conditions. Two alternative processes were analyzed to evaluate the cost impact of reducing solvent usage: liquid assisted grinding (LAG) and aqueous synthesis. Cost projections from these alternative synthesis approaches range from $13/kg to $36/kg (representing 34–83% reductions), demonstrating the large impact of solvent on the baseline analysis. Finally, sensitivity studies were conducted to identify additional opportunities for achieving MOF production costs of less than $10/kg.